Verifiable blind quantum computing with trapped ions and single photons

P. Drmota (1) , D. P. Nadlinger (1) , D. Main (1) , B. C. Nichol (1) , E. M. Ainley (1) , Dominik Leichtle (2) , A. Mantri (3) , Elham Kashefi (4, 5, 2) , R. Srinivas (1) , G. Araneda (1) , C. J. Ballance (1) , D. M. Lucas (1)

1 Department of Physics [Oxford]
2 QI - Information Quantique [LIP6]
3 Joint Center for Quantum Information and Computer Science (QuICS), University of Maryland
4 Edin. - University of Edinburgh
5 National Quantum Computing Centre

We present the first hybrid matter-photon implementation of verifiable blind quantum computing. We use a trapped-ion quantum server and a client-side photonic detection system connected by a fibre-optic quantum network link. The availability of memory qubits and deterministic quantum logic enables interactive protocols without post-selection - a requirement for any scalable blind quantum cloud server which previous realisations could not provide. Our apparatus supports guaranteed privacy with <0.001 leaked bits per qubit and shows a clear path to fully verified quantum computing in the cloud.

Domaines: Physique Quantique [quant-ph]

P. Drmota, D. P. Nadlinger, D. Main, B. C. Nichol, E. M. Ainley, et al.. Verifiable blind quantum computing with trapped ions and single photons. 2023. ⟨hal-04133397⟩